I wanna buy or build a new PC and I only have 1000$ plus need to cover monitor. So I need the PC to be able to play game called league of legend in highest performance it's an online game it's not like call of duty. so what you guys recommend.
this monitor I wanna by http://www.walmart.com/ip/Sceptre-32-Class-LED-720p-60H...
The system I mentioned will play your game with no hiccups, but you may not find one at closeout. Here's a list of parts from newegg if you want to try building your own. Be aware that first time builders frequently have problems getting the system to post, so if you don't have much patience, get a pre-built instead and add a video card if it doesn't come with a good one.
Total: about $729, leaving you enough for your tv monitor. The cpu I picked isn't designed for overclocking, but it's plenty fast, and the msi board will allow for overclocking if you want a "k" series cpu, which newegg is out of right now.